| (19) |
 |
|
(11) |
EP 1 860 293 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
05.12.2007 Bulletin 2007/49 |
| (43) |
Date of publication A2: |
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28.11.2007 Bulletin 2007/48 |
| (22) |
Date of filing: 13.05.2003 |
|
| (51) |
International Patent Classification (IPC):
|
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| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR |
| (30) |
Priority: |
31.05.2002 US 159369 P
|
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
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03728901.4 / 1552119 |
| (71) |
Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
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2596 HR Den Haag (NL) |
|
| (72) |
Inventors: |
|
- Buglass, John G.
Glastonbury, CT 06033 (US)
- Kocum, Francis A.
Glastonbury, CT 06033 (US)
- Liu, Ke
East Longmeadow, MA 01028 (US)
- Schoonebeek, Ronald J.
1031 CM Amsterdam (NL)
- Vincitore, Antonio M.
Manchester, CT 06040 (US)
|
| (74) |
Representative: Zeestraten, Albertus W. J. |
|
Shell International B.V.,
Intellectual Property Services,
P.O. Box 384
2501 CJ The Hague
2501 CJ The Hague (NL) |
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| |
|
| (54) |
Reducing oxides of nitrogen using hydrogen generated from engine fuel and exhaust |
(57) The invention provides a system for reducing oxides of nitrogen (NOx) in the exhaust
of a hydrocarbon- fuelled, internal combustion engine (9), comprising:
a hydrogen generator (22) having an inlet and an outlet for converting engine fuel,
oxygen and moisture to hydrogen and carbon monoxide, said hydrogen generator providing
an outflow at its outlet (26) including hydrogen and carbon dioxide; and
NOx catalytic converters (28) or NOx traps (35,36) for receiving said engine exhaust
and said outflow for reducing the NOx in said engine exhaust
characterized by:
means (19) for providing a mixture of fuel from said source (12) with air from air
inlet (11) and said engine exhaust to the inlet of said hydrogen generator.